Steam-turbine.



PATENTEb AUG. 27, 1907.

R. SCHULZ. STEAM TURBINB. A L'PPL-IOA'TIOK PII'JID JUNE 28. 1907.

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IIIIIIIIIIIIIIII v'PATENT ossron RlGHARD SCHULZ, OF BERLIN, GERMANY.

STE'AM-TURBINE.

Specification of Letters Patent.

Patented Aug. 27, 1907.

.Application led June 28, 1907. Serial No. 381,343.

The present invention relates to steam turbines and an important Object is to provide guide bied@ holders forimpact steam turbines in which there are one or more j chambers that the steam liows through in an axial direction.

Guide blade holders for steam turbines that form part of tle turbr e' housing and project through openings in the same into the interior oi the turbine are known. It

is likewise, old to construct the guide blade holders so` as to be revoluble and it is admissible to cutaway thel housing when short guide blade holders are used in or der to fix them in place. With the vrequirements demended for the driving of ships, itis'necessary to have lrecourse to long guide blade holders extending over three quarters and'sonie times the whole ofthe periphery so that it is preferable-to moun't the blades or holders independently oi the housing. The longer guide blade holders must `extend into the bottom hali of the housingso that ii it isv desired-to inspect or repair the guide blades which are in the-bottom half of the housing the turbine shatwith alll the moving parts', must first be lifted out. By using the guide blade holder made in accordance with the present invention it .is not necessary to remove the shaft and other moving parts.

According to the present invention the guide blade holder is arranged in a ring or a portion of a ring which is detachably connected to and which forms an extensiony of the guide rim or nozzle rim of a guide disk or partition revoluble around the shaft of the turbine.

In order that the invention may be clearly understood reerenceis made to the accompanying drawing in which are some forms oi guide blade holders made in accordance with this invention, are shown, andin which, y f v Figure l is a longitudinal axial section through apart Figs. 2 and 3 are sections through parts of `of a turbine.

, the housing, guide apparatus or nozzles and the running wheel. Fig. 4 is a section of guide blade holder formed as a regulating slide and containing the exhaust ends oi -the nozzles,` andvFig. 5 is a .plan ofone form of guide blade holder,

In Fig. l the nozzles are formed in a rim in the parti- I tion. or guide disk C that separates the several stagesand Aa ring Adetachably surrounding the latter, said A forms an. extension of the guide on the partition.

'Vends of the nozzles and participating The-partition C is capable of being revolved about the shaft.

The holder '1 for the stationary guide blades s is formed as flange or extension oi the ring A and in one piece with it. If the nozzles a are distributed at differnt portions ofthe circumference ofthe disk or partition .G then radially divided arcuate portions or sectors of a ring A each provided with the stationary blade holder i T, are connected to the partition C. i In the form shown in Fig. 2 the ring Aor portion `of .the ring A is detachably attached .by means oi screws t to the rim of nozzles on the partition or guide disk C and the holder Tvior the stationary guide blades s projects laterally from the ring A.

In the fo'rm shown in Fig. 3 the ring A or portion of the ring containing the exhaust ends of the nozzles a, is secured to the nozzle rim orV disk G .by means of screws t and the holder T for the stationary blades s is detachably` secured to the ring A by bolts or screws In the form shown'in Fig. 4 theportion oi a ring A that forms a portionl of the guide rim on the guide-disk A and contains the exhaust ends of the nozzles a isadjustablewith respect to the nozzles and disk or parti-v tion C, the holderT for the stationary blades s being adjustable with the ring portion A and is shown in figure as made in one piece with A.

Any well known devices for adjusting the ring tion A may be used, and I have shown a wor-mc engagy ing worin teeth on thering portion A which latter serves as a regulating slide for controlling the Asteam through the nozzles a to var-y the expansionand' of the steanncompare also Fig. 5 with respect to this.

The guide` blades in rigid. connection with the exhaust in the adjusting vmovement is a decided advantage. The Aguide, *blade holders can ybe made in one piece with or may be joined to the -ring or portion of ring that forms an extension or part of the guide or nozzle ring.

As special-advantages oi the present invention be mentioned: That when the guide blades are rigidly connected to the nozzles or. nozzle supports, they are independent' oi the lhousing of the turbine and the interior of the housing is easier to finish. The housing retains its full strength because largel openings therethrough are not necessary. Special axial adjustment ot, heguide blade holders are not necessary. The -arrangement also enables the guide blades, that are at the bottom of the housing of the turbine, to be rotated above the shaft after the upper half of the housing has been removed by`rotating the guide rim,-so that the blades can be renovated.

I claim:-

' 1. In a steam turbine of the type described, the col-nbi-l nation with a guide-disk having a guide-rim revoluble thereon, of; a guide blade holder attached to and forming an extensin of lsaid guide-rim.

2. In a steam turbine of he type described, the combination with a guide-disk having 'a guide-rirnjrevoluble thereon, of a guide blade hlolder detachably attachedv to .and forming an extension of said guide-rim. .5.;

3.. In a steam turbine of'the type described, the combination with a lnitric-disky having a guide-rim revoiuble .thereon, of a ringshaped guide-blade holder attached to and forming an extension of :said guide-rim. 4. In a steainturbine of e type described, the combiving a guide-rim revoluble thereon, of av ring shaped guide-blade holder detachablyv attached-,to ,amd lforming auf extension of said guide-rim on said guiddiskr as set forth, for the purpose speciattached to said portonof a ring, as set forth.

G. In a steam turbine of the type described,Y the combi;

`nation lwith a 4guidedisk having aguide-rim revoluble thereon'foffa portion of a ring attached to`and forming an extension' of said guide-rim, and a guide-bladeholder detachablj attached tov said portion ot" a ring, for the pur- 7. 1n a' steam turbine of the type described, the combination with-a. guide-disk having alguide-rim revoluble thereon;.ofa ring attached to and forming an extension of said guide-rim, and a guide-blade lholder attached to `said ring,for lthe purpose specified.

8. In' a steam turbine of the type described, the combination with a guide-disk having a guide-rim revoluble thereon, of a ring attached to yand forming an extension of said guide-rim and a guide-bladeholder detachahly attached to said ring-,for the purpose 'speeiied 9. In a steam turbine ofthe type described, the combination with a` guide-disk having 'a guide-rim revoluble thereonfof -a revoluble ring' portion contacting and -forming. an extension of aid guide-rim, a guide-blade holder on said ring portion aid means for-rotating said ring portion against said guide-rim, whereby when4 said'ring portion 'is moved theholder participates in the movement.

`10. In a steanptrbine of the type described, the combination with anozzle element; of a holder -for the stationary guide ,blades said holder containing the exhaust ends of the nozzles.

11. In a steam turbine of the type described, the combination with a nozzle element; of ,a holder for the stationary guide blades containing a portin of 'the nozzles and means to adjust the holder relatively to the nozzle element. l

In testimony that I claim the foregoing as my invention, I lhave sig-ned my name linnresence of two subscribing ywitnesses.y

l RICHARD' SCHULZ.

Witnesses z JOHANNES Heng'. ,HENRY HAsPrm. 

